EP 0335173 B1 19931110 - Antifoam additive.
Title (en)
Antifoam additive.
Title (de)
Schaumdämpfungsmittel.
Title (fr)
Additif antimousse.
Publication
Application
Priority
DE 3810426 A 19880326
Abstract (en)
[origin: JPH01274806A] PURPOSE: To exhibit a foam suppression effect and deaeration effect which are good and constant by incorporating an ester of an aliphat. carboxylic acid and aliphat. alcohol, an amide and a nonionic surfactant into a foam suppressant. CONSTITUTION: The ester of the aliphat. carboxylic acid, such as methyl laurate, having at least 150 deg.C b.p. and the aliphat. alcohol is used as the foam suppressant to be used in a production stage in textile industry or the like. The amide, such as methylene-bis-stearic acid amide of formula I (where R is a 10-22C alkyl or the like; R' is H, a 1-4C alkyl or the like; R" is -CH2 -O-CH2 - or the like) is added at 0.5 to 10 wt.% and the nonionic surfactant at 1 to 30 wt.% thereto. The foam suppressant is extremely suitable for foam suppression and prevention of foam formation in an aq. system liable to foaming and deaeration.
IPC 1-7
IPC 8 full level
B01D 19/04 (2006.01)
CPC (source: EP US)
B01D 19/0404 (2013.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0335173 A2 19891004; EP 0335173 A3 19910502; EP 0335173 B1 19931110; EP 0335173 B2 19960717; AT E97012 T1 19931115; CA 1330029 C 19940607; DE 3810426 A1 19891012; DE 58906129 D1 19931216; ES 2060681 T3 19941201; ES 2060681 T5 19961001; JP 2799180 B2 19980917; JP H01274806 A 19891102; US 4988463 A 19910129
DOCDB simple family (application)
EP 89104600 A 19890315; AT 89104600 T 19890315; CA 594706 A 19890323; DE 3810426 A 19880326; DE 58906129 T 19890315; ES 89104600 T 19890315; JP 7078689 A 19890324; US 32244189 A 19890313